Immunolocalization, regulation and postnatal expression of aquaporins 1, 8 and 9 in the testis, efferent ducts and epididymis of adult rats.

Aquaporins (AQPs) are membrane protein channels that allow rapid passage of water through an epithelium containing tight junctions. In the present study, light and electron microscope immunocytochemistry were utilized to localize several members of the aquaporin family in the testis, efferent ducts and epididymis of adult animals, animals at different postnatal ages and efferent duct ligated and o…